Drawing board capable of measuring position information

Abstract

The present invention relates to a drawing board capable of measuring position information, belonging to the technical field of computer peripheral input equipment. The drawing board comprises a circuit board, a main controller and a position information sensor, wherein the position information sensor is welded on the circuit board and connected with the main controller, and the position information sensor is used for acquiring the rotating position information of the drawing board, converting the information into electrical signals and sending the electrical signals to the main controller; the main controller is used for doing subtractive dithering processing for the signals and sending the signals out. When the drawing board rotates in relation to the page content displayed on a computer, and the position information of the drawing board in relation to the ground also changes, the rotating position information is acquired by the position information sensor, converted into electrical signals and sent to the main controller, and subtractive dithering, etc processing is carried out for the signals by the main controller, so the page content displayed on the computer further rotates in consistency with the drawing board.

Description

technical field [0001] The invention relates to the field of computer peripheral input devices, in particular to a drawing board capable of measuring position information of the drawing board. Background technique [0002] The working principle of the drawing board and drawing pen as the peripheral input device of the computer is: according to the movement of the drawing pen on the drawing board, determine the moving track of the drawing pen on the drawing board, the pressure on the drawing board and the inclination angle of the drawing pen etc., and transmit this information to the computer to achieve the purpose of painting. [0003] Generally, on the drawing board, a plurality of transverse coils are distributed horizontally, and the transverse coils are used for intermittently sending electromagnetic signals; meanwhile, a plurality of longitudinal coils are distributed longitudinally, and the longitudinal coils are used for receiving electromagnetic signals sent by the t...

AI Technical Summary

Problems solved by technology

However, as far as the drawing board itself is concerned, another kind of position information may be generated during its use. For example, during the drawing process, the operator needs to change the position of the drawing board by rotating it for the sake of convenience. , however, the content of the page displayed on the computer does not rotate accordingly

The inventor finds that no relevant technical solutions are provided in the prior art to solve this problem

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